# HG changeset patch
# User Mike Becker <universe@uap-core.de>
# Date 1632761837 -7200
# Node ID 003aa0a78e1e6a569124205353b8dd46ed290180
# Parent  9a5adedd6de6828624bf2e52198fdfa341b08e82
fix mixed up cases in cx_ll_at()

diff -r 9a5adedd6de6 -r 003aa0a78e1e src/linked_list.c
--- a/src/linked_list.c	Mon Sep 27 18:50:07 2021 +0200
+++ b/src/linked_list.c	Mon Sep 27 18:57:17 2021 +0200
@@ -152,12 +152,14 @@
 static void *cx_ll_at(cx_list_s *list, size_t index) {
     cx_linked_list *ll = (cx_linked_list *) list;
     struct cx_linked_list_node *node;
-    if (index > list->size / 2) {
+    if (index >= list->size) {
+        node = NULL;
+    } else if (index > list->size / 2) {
+        node = cx_linked_list_at(ll->end, list->size, CX_LL_LOC_PREV, index);
+    } else {
         node = cx_linked_list_at(ll->begin, 0, CX_LL_LOC_NEXT, index);
-    } else {
-        node = cx_linked_list_at(ll->end, list->size, CX_LL_LOC_PREV, index);
     }
-    return &node->payload;
+    return node == NULL ? NULL : &node->payload;
 }
 
 static size_t cx_ll_find(cx_list_s *list, void *elem) {